Is this a "buck converter" or does it use a linear regulator?
37727
The package says it's a switching regulator. It only steps down in voltage (buck) and can't step up (boost). It doesn't have antlers, but it's still a buck.
26613
Yea, this is most definitely not dual voltage although it says so. I took it to Europe under the assumption it was. I also used a converter and it still died on me.
1739209
I believe Solar Converters out of Canada makes a efficient buck-boost converter. Its small and light. The resistor idea isnt very efficient and will increase current draw but it is cheap but since its on for a sec it may not matter.
1253950
there is a voltage converter you simply plug in. That part of the is wired.
1693759
No regulator needed, I use mine to keep battery charged up on my ATV, it has enough solar power to keep my 12 volt battery charged an ready to go. Hope this helps.
1320017
Yes, the one that I have seems to have a buck converter driver, and it is fine on 6V from 2x CR123. The specs say 3.7-8.4V, so presumably it hasn't changed since I bought mine. Mine quits right around 3V, so a single CR123 would only work briefly if at all. 2x CR123 fit fine. Mine measured about 300mAat 6V, so 2xCR123 should last 3-4 hours.
1567404
If you operate in a mixed 12V 24V environment, it's fairly trivial to add a 12V or other adjustable voltage regulator for that purpose. http://www.amazon.com/Converter-Regulator-Voltage-Reducer-Step/dp/B00AO0PCMW/ref=sr_1_2?ie=UTF8&qid=1362772728&sr=8-2&keywords=voltage+regulator+24v+to+12v
350935
I thought it was a UPS. It is not. Glad to know it at least does some voltage regulation.
161572
Some things have "dual" voltage (most camera and phone chargers, some travel hair irons etc.) and you will find that info somewhere on the device or instructions. If you are not sure, its best to plan on using the converter.
1734540
It's rated at 120 volts. I'm not an authority on electronics, but I wouldn't count on a converter providing satisfactory results./John.
1763318
in fact, I'm using it JUST FINE with a 5v power supply. since it works great with 5v, I see no need to over-voltage it with 12v. yes, it will have an onboard dc/dc converter but as I found out, 5v is enough for it. center pin is plus, of course.
2135946
Looks like the same one I bought. I used a 12 volt DC 1 amp output converter. Think I got it from Radio Shack. It was plenty loud with even a smaller amperage converter I had, but I thought it might overdrive it so I got the 1amp just in case.
1481498
The description of the device on Amazon indicated an input range of 12V DC to 40V DC. There were no instructions that came with the device. My converter is installed in my aircraft and the input voltage could be at times, higher that 24V but not much.
2237754
It is the correct Regulator. Im installing one this weekend, but can't speak to the quality or dependability yet.
1924241
The input caps are not the only voltage sensitive components in the converter. The voltage regulator chip, the transistors, and possibly other components will have a max voltage rating that would have to be analyzed to be safe with the changes you suggest. Thermal evaluation of some components might also be needed with the higher voltage. You would be better off starting with a converter designed for 74+ volts.
1175550
Pretty sure this is a switching power supply. Not large or heavy enough to be transformer based. It has worked well for me powering a dc swamp cooler that draws 10 amps. Probably not so good powering radio equipment without knowing the switching frequency.
491875
Input must be pure DC - most battery chargers have too much noise for this unit. Momentary + voltage applied to third input will trigger reset, etc'